Generator apparatus



May 15, 1928.

W. BLASKEWITZ GENERATOR APPARATUS Filed Oct. 6 1926 2 Sheets-Sheet 1 INVENTOR.

ML; 094 flma/rzw/rz A TTORNEY.

May 15, 1928.

W. BLASKEWITZ GENERATOR APPARATUS 2 Sheets-Sheet 2 Filed 001;. 6. 1926 IN V EN TOR.

Patented May 15, 1928.

UNITED STATES PATENT omce.

WILLIAM n AsxnwITz, 0F DETROIT, MICHIGAN, QASSIGNOR To cLAY onaLAMBERT 'MANUFACTURING 00., or DETROIT, MICHIGAN, A. CORPORATION or MICHIGAN.

GENERATOR APPARATUS.

Application filed October 6, 1926. Serial N0.139 876.

This invention relates to generator apparatus for liquid fuel burners and has to do particularly. with the provision of a generating structure adapted to vaporize and sup ply fuel to any one of a plurality'of burners as desired.

Heretofore in the manufacture and design of liquid fuel burners, particularly the type designed to be used in connection with collapsible or camp stoves, considerable difliculty has been experienced in obtaining and maintaining the proper quality of com bustible fuel, and in the commercial stove structures that have been fairly successful,

r it has been the custom toutilize the main or central burner which has served the double function as a normal heating burner and also as a burner for heating the generator tube. It has therefore been necessary, during operation, to always maintain the central or main burner at approximately full. operation in order to obtain and maintain an approximate supply and quality of vaporized fuel. i

he presentinvention contemplates the provision of an entirely novel method of an apparatnsfor vaporizing the'fuel and conducting the same to the various burners. More particularly, this invention contemplates the provision of a central vaporizing member which is adapted to initiallv receive all the fuel to be vaporized and conducted to all the burners but which main vaporizing member may be adjust-ably controlledto supply as large or as small a volume of fuel to the main or central burner as desired. The result of this structure is that the central burner may be increased or decreased as desired in the heating of a particular utensil, or it may be approximately shut off and one or more auxiliary burners left binning as desired.

Another object of the present invention is the'provision of a multiple tube generating structure wherein the main and auxiliary generating tubes are so arranged with reference to the mixing chamber, or chambers, that a constant quality of 'fuel mixture is always obtainable an'd maintaina-ble at any or all burners as desired with the result that an efficient blue flame is always present when. any or all burners are turned on.

A further feature of the present invention has to do with the particular method .of vaporizing and conducting the fuel to the varlousburners wherein the fuel is supplied in a single column and preheated and then conducted in a plurality of columns Whichare submitted to a plurality of sources of heat before being finally mixed with the air to form a combustible fuelmixture.

The structure for accomplishing this novel method comprises a simple generating tube for recci vin'g the liquid fuel and which tube is positioned above a burner. This central tube is supplied with'a plurality of smaller tubes whereby the initial column of liquid fuel, after being preheated, is' conducted back past the main generating burner while still contained Within the generator tube, after which it is passed through a second generator tube and subjected to the heat from an auxiliary burner, after which the thoroughly and efliciently vaporized fuel is combined with air to form a combustible mixture.

In the drawings:

.F'g. 1 is a 'planview ofniy novel generating and burner structure, showing part of the structure broken away to more clearly illustrate the method of vaporizing and conducting the gases/to the various burners.

Fig. 2 is a side elevation of the structure shown in Fig. 1' and illustrating one form'of mixing chamber and" burner for conducting and utilizing the vaporized fuel.

Fig. 3 is a sectional view taken on line 3-3 of Fig. 1.

It Will be understood that in the embodiment ofmy invention, as illustrated in the drawings, that the generator and burner structure may be utilized'in connection with anysuitable stove structure, or any other structure of similar nature requiring the use of burner elements. The structureis particularly adapted, however, to stove structures wherein. the fuel supply tank and generating means are integral to form a unitary fuelsupply unit which is slidable'relative to the burner structure wherebygtobe easily collapsed Within a relatively small space and to perform useful functions in the various positions of adjustment. have notshown any particular typeof frame or stove casing,ibut a particular type of stove structure-to which thepresent invention is particularly applicable is that shown and described in a pending application No.

131,868, filed August 27, 1926, by William Blaskewitz, Charles F. Lambert, Clarence BVOV-e rIy and James Ironside'..

Any number of burners may be utilized in embodying the present invention and in the drawings I have shown three burners which form the desirednumber of burners for use with a camp or similarcook. stove. The main burner, or generator burner, may

be designated 1, and the auxiliary burners at either side thereof may be designated 2 and 111 burner structures of this type it is customaryto utilize a suitable supply conduit for the fuel and to position this conduit over the central. or main burner whereby such central. burner serves to vaporize the fuel passing through the conduit andto also serve its normal. function a burner; i

In the present invention 1 utilize such a central generating burnerin such av manner to obtain all the advantages thereof without any of the disadvantages such as have been present in the prior art. Each of the burners 1,2 and 3 are adapted to be connected to suitable mixing chambers 4, 5 and 6, respectively. As shown, these mixing chambers are provided with suitable air inlets 7 and generator inlets 9 whereby the gases issuing from the generators may be combined with air to form a combustible mixture. H

The central burner 1 and the mixing chamber l are adapted to be connected to a suitable generating tube 8. This tube is of relatively large size and is adapted. to con tain sufficient liquid fuel to cause preheat- .ator tube 8 is adapted to receive three smaller tubes 12, 13 and 14;, as best shown in Figs 3, andthese. tubes are preferably threaded into the generator tube 11, the central tube 12 being preferably longer and preferably slightly larger in diameter than the tubes 13, and 14.. The tube 8, surrounding the tubes 12, 153 and "14%, is packed with a plurality of rods 15 whereliiythc liquid fuel istrapped in the tube 8 and sped by capillary action towards the jet block, this function being particularly adaptable during the preheating operation, and also When the burners are shut down.

The central tube 12 is provided with a extends suitable, valve rod 16 which throughout the length thereof and which is provided with a suitable wire 17 which pro jeotfi through the tapered orifice in the jet the generator head.

block 10. This wire in addition-to being a cleaner forsa-id orifice, is also adapted to so cooperate with said: orifice as to control the opening and closing thereof when the valve rod 16 is advanced or retarded. Inother words, this wire 17 is'adapted to act as a valve for the jet block lOto control the amount of gas entering the mixing chamher 1. The needle or wire 17 never completelyclosesthe orifice in the jet block 10. The point of the wire 17 is preferably tapered as is the customary practice for forming cleaner wires for jet blocks, but this is not necessary. WVhen the. valve 28. is moved outwardly a relativelyv great distance, the end of the wire 17, or the tapered portion thereof, allows a large amount-of fuel to pass through the jet block. \Vhen the valve 28 is moved toward closed position, the member 17 restricts the flow of fuelto the central burner. Y i

The generator head 11 is of novel design and preferably consists, as shown, of three separate T-joints, orvalve housings, for receiving the generator tube 8 and the auxiliary generator tubes 20 and 21, as clearly shown in Fig. 1. i The joints, or valve housings, for the tubes 20 and 21 may be designated 22 and 23 respectively. The central valve housing of the generator head 11. is adapted to receive, in longitudinal alignment with tubev 8, a. connecting fuel conduit 2 1 which forms the connecting means between the generator head 11 and a suitable valve housing 25 which is adapted tofbe mounted. upon a suitable fuel tank 26, and to be connectedwith a suitable conduit 27 extending within the fuel tank, as shown in Fig.2. The valverod 16 preferably extendsthe full length o'fithe generator tube 8, the con ducting tube 24 and the valvehousing 25, as shown in Fig. 1, and midway of its length the rod is enlargedin diameter and tapered, as at 28, to form a valve to cooper ate witha suitablervalve seat provided in This valve rod 16 is further enlarged at 29 wherebyto have a threaded end fit within the extension 30 of the generator head. A suitable slot 21 is preferably formed in this rod 16, as shown in Fig.1, wherebyl'o conduct the liquid fuel threads 20 to a point where it may becon trolled by the valve 28. ltwlll be underwhicl'i is fed around tlielrod 16 past the.

stood that this slot 31 may be formed eitherin the extension 30 forroceiving thethreads 29, or in the threaded part 29 of the valve rod. It will thus be obvious that when the valverod 16 is backed away by turning the same, liquid fuel may be fed through the slot 31 past the valve 28 and into the tube 12, being thus forced into a thin annular wall between the rod 16 and the walls of. the tube 12. When the valve rod 16 is not only positively provides a blue flame at any or all burners, but which reduces the amount of structure and fuel necessary and which alsopermits the independent operation of each burner. Due to the size and formation of the main generating tube 8, it willbe understood thatonly a small amount ofgas need be fedto and be guided at the central burner to maintain complete vaporiz'ation of all fuel fed thereto.

The generating unit, which comprises the head 11 and the main and auxiliary generating tubes, ispreferably slidable relative to the mixingchambers whereby said generator unit, when used inconnection with a camp stove case, may be moved inwardly together with the fuel container to permit collapsing thereof. Such generating unit is also made movable and slidable relative to the mixing chambers for the reason that in some types of mixing'chamber, such amovement will be necessary to effect initial preheating.

Having thus described my invention, what I claim is; i i

1. A generating unit for a multiple burner structure of the liquid fuel type comprising amain generating member and an auxllla'ry generating unit, a valve for controlling the fuel supply to said main generating member,

a conduit for conductinga portion of the. fuel from said mam tosald auxlhary memher, and mea-ns for controlling the outlet of a portion of the vapor from said main generatingmemberto a burner without affecting the supplying of vapor to said auxiliary generating unit. i :2. A generating unit for a multiple burner structure of the liquid fuel type comprising an integral generating unit having a plurality of vaporizing tubes, a common control for all of said tubes, and independent controls for controlling the outlet of vapor from each of said tubes.

3, A stove structure of the liquid fuel multiple burner type comprising a plurality of burners haying independent mixing chambers, and a plurality of generating members adapted to be slidably connected to said mixingchamber. p

4. A stove construction of the liquid fuel multiple burner type comprising a plurality of mixing chambers,a generating member adapted to be positioned above'one burner and to supply vaporized fuel thereto, a second generator member connected to said first named generating member, and means for conducting a part of said vaporlzed fuel to sa1d second generator member.

5. A- stove structure of the liquid fuel multiple burner type comprising aplurality mixing chambers and interconnected generating tubes therefor, a single means for controlling the supply of fuel to all of said generating tubes, and independent; means for controlling the discharge of fuel from generating tube for conducting vaporized but unmixed fuel through said head and to said auxiliary generating tubes. r y

. 7. A generating unit for stove structures of the multiple burner type comprising a main. generating tube, and a burner for heating the same, auxiliary generating tubes having passageways connecting the" said main tube and auxiliary vaporizing burners for heating said auxiliary tubes.

8. A stove structure of the mult1ple burner, liquid fuel. type, comprising a pluralityof burners, mixing chambers therefor, interconnected generating tubes for each lnlXlIlf chamber, a liquid fuel supply conduit and meansconnecting said conduit withone of said tubes for initially conducting all offuel therethrough.

9. Aistove structure of the liquid fuel multiple burner type comprising a plurality of burners, mixingchambers therefor, interconnect-ed main and auxiliary generating tubes for said mixing chambers, means for controlling the supply offuel to each of said auxiliary generating tubes from said main generating tube and means for independentlycontrolling the discharge of vatubes. y

. 10. A generating unitfor a stove structure of the multiple burner liquid fuel t pe porized fuel from each of said generating comprising a central generating tube .pac red to providecapillary action upon any fuel therein, auxiliary generating tubes, and means positioned within Said main generating tube for conducting unmixed fuel or vaporized gases to said auxiliary tubes.

11. A stove structurepf the liquid fuel multiple burner type colnprising a plurality of burners andniixing chambers therefor, and apli'lrality of generating members slidably connected relative to said mixing chambers, said generating members being interconnected but independently operable.

, 12. A stove structure oftheliquid fuel multiple burner typelcomprising a central burner and auxiliary burners andmixing chambers therefor, a generating tube adapt ed to supply unmixed vaporized gases'to said central mixing chamber, and means for conducting part of said gases from said generating member to a point adjacent said auxiliary burners before being mixed with air to form a combustible mixture.

18. A stove structure of the liquid fuel multiple burner type comprising a plurality of burners, a plurality of mixing chambers and interconnected generating members therefor, means for permitting independent 1 ture.

WILLIAM BLASKEWITZ.

In testimony whereof I aflix my signa- 15 

